Registration Dossier
Registration Dossier
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EC number: 219-787-9 | CAS number: 2530-87-2
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- no hazard identified
Marine water
- Hazard assessment conclusion:
- no hazard identified
STP
- Hazard assessment conclusion:
- no hazard identified
Sediment (freshwater)
- Hazard assessment conclusion:
- no hazard identified
Sediment (marine water)
- Hazard assessment conclusion:
- no hazard identified
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- no hazard identified
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
(3-Chloropropyl)trimethoxysilane (CAS 2530-87-2) hydrolyses in water with a half-life of 4.5 hours at pH 7 and 20°C. This short hydrolysis half-life is such that the hydrolysis products, and not the parent substance, are relevant for environmental risk assessment.
Conclusion on classification
The substance has reliable short-term E(L)C50 values of >100 mg/l in fish, 869 mg/l in invertebrates and >833 mg/l in algae. It has reliable NOEC 167 mg/l in algae.
The substance hydrolyses (very) rapidly in water and is not readily biodegradable; the silanol hydrolysis product has low log Kow.
These data are consistent with the following classification under Regulation (EC) No 1272/2008 (as amended) (CLP):
Acute toxicity: Not classified.
Chronic toxicity: Not classified.
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